Other series NRF52 contrast, low-power Bluetooth 5.2, where the advantages of Soc chip NRF52820 in?

nRF52820 SoC provides advanced multi-protocol support - along with 12 Mbps USB, full-featured +8 dBm output power radio, supports all Bluetooth 5.2 features, Bluetooth and remote sensing and high temperature to function - for HID, smart home, commercial, and industrial application of
Nordic semiconductor announced nRF52820 Bluetooth 5.2 on the system (SoC), which is its popular and proven nRF52 paragraph 6 series products.
  nRF52820 ultra-low-power Bluetooth  low power ( BLE), Bluetooth networking, threads, Zigbee and 2.4 GHz proprietary low-end wireless connectivity solutions.
  nRF52820 Bluetooth 5.0, 5.1 and 5.2 all functions, including remote and high throughput 2 Mbps, targeting to find, LE and LE-SCH power control. SoC further comprises a high-speed (12 Mbps) USB 2.0 interface. 

nRF52820 with a powerful 64 MHz 32 Wei ARM M4 processors, and has 256 KB Flash and 32 KB RAM, making it ideal for a wide range of single-chip choice commercial and industrial wireless applications, including professional lighting, asset tracking, HIDM and games product. In addition, with the use and application of MCU, full-featured multi-protocol radio and +8 dBm output power nRF52820 makes it an ideal network processor smart home gateways and other applications requiring advanced wireless connectivity.
nRF52820 has -40 to 105 ° C extended industrial temperature range qualification operation, making it suitable for commercial and industrial applications, including professional lighting
high speed (12 Mbps) USB operation is a key feature of nRF52820. USB is a common connection interface for low latency and high bandwidth communications with a number of a host device (e.g. the PC, smart phones and gateways). This connection also allows update (DFU) by USB device firmware becomes feasible. In addition to the main power regulator, nRF52820 USB peripherals further comprises a dedicated regulator, for converting the signal to 5 V VBUS signal interface for USB 3.3 V, thus eliminating the external regulators required cost and space.
nRF52820 GPIO and comprising a series of up to 18 analog and digital interfaces, such as an analog comparator, SPI, UART, TWI and QDEC. Cover the input supply voltage range of 1.7 to 5.5V, so that a button battery may be nRF52820 and rechargeable battery. When connected to a USB host, nRF52820 can be powered directly from the 5 V VBUS signal is always present. We will also provide post-Hardware Design
nRF52820 can use the S112 and S140 soft equipment (compliant with the Bluetooth 5.1 protocol stack) and S122 (alpha version) soft device support. S112 and S122 are the peripherals and memory optimization of the central stack, while the S140 is a fully functional center for devices and peripherals 5 Bluetooth protocol stack, including remote and high throughput 2 Mbps function.
Nordic's nRF5 SDK (Software Development Kit) v16.0.0 support the use of nRF52820 development,
complete nRF5 SDK will support in the 2020 second quarter.
nRF52833 Development Kit (DK) can be used to simulate nRF52820, and is a good basis for development based on the design nRF52820 nRF52820 the start. DK is a universal board development kit for Bluetooth LE, Bluetooth Mesh, 802.15.4, Thread, Zigbee 2.4GHz and proprietary applications. DK is compatible with the Arduino Uno Rev3 standards,
"NRF52820 via Bluetooth over 5.2 protocol SoC extends the maturity and mature nRF52 series of hardware and software platforms for applications with limited budgets," Kjetil Holstad Nordic Semiconductor director of product management said. nRF52 series is now based on OEM and ODM ideal platform for all of its short-range wireless products. The series of common hardware and software architecture delivers outstanding portability of software to improve software reusability, while reducing time to market and development costs. "
NRF52820 Engineering samples are available now. The SoC using 5x5 mm QFN40 package having the GPIO 18, and is compatible with the Nordic nRF52833 SoC.